基于声传感器阵列的高亚音速飞行目标宽带DOA时域MSWF快速估计方法  

The Time-Domain MSWF Rapid Bandwidth DOA Estimation of High Subsonic Flight Target Based on Acoustic Sensor Arrays

作　　者：陈昭男 王磊[1] Chen Zhaonan;Wang Lei(91550 Troops of People’s Liberation Army)

机构地区：[1]中国人民解放军91550部队,辽宁大连116023

出　　处：《信号处理》2020年第12期2116-2122,共7页Journal of Signal Processing

基　　金：国家自然科学基金青年基金项目:高亚音速飞行目标声学特性分析及跟踪方法研究(61801481)。

摘　　要：在海面低空飞行目标探测场景中,主要利用声学方法对目标进行测向从而为其他高精度雷达系统提供引导,这就对声学测向方法的实时性提出了较高要求。针对低空高亚音速飞行目标DOA的快速估计问题,以利用布设于有限空间内的声传感器阵实现海面高亚音速目标角度的快速估计为背景,针对其宽带声信号精确测向的难题,建立了基于均匀线性空间十字阵的宽带时域阵列信号模型,为实现海面低空飞行目标的快速声学测向,将经典宽带时域多级维纳滤波器(MSWF)的DOA估计方法拓展至时域模型,提出了相应的宽带DOA快速估计方法,该方法在保持了多重信号分类算法优势的同时,有效提升了声学DOA估计的实时性。In the detection of low altitude flight target in the sea surface,the acoustic DOA estimation is used to guide other high-precision radar systems,and the real-time performance of the acoustic DOA estimation is demanded.Aiming at the fast DOA estimation problem of low altitude and high subsonic flight target,the background was the fast acoustic direction-finding of high subsonic flight target by the several microphones in the finite space of the sea surface.The time-domain received signal model was established based on the uniform linear cross sensor arrays.To realize the fast DOA estimation of the high subsonic flight target,the traditional broadband MSWF of DOA estimation was expanded to the time signals,and the related DOA estimation method was proposed.The proposed method maintains the advantages of the MUSIC methods and effectively improves the real-time performance in the action.

关 键 词：声传感器阵 高亚音速飞行目标 波达方向估计 多级维纳滤波器 

分 类 号：V217[航空宇航科学与技术—航空宇航推进理论与工程] TB52[理学—物理]